640504800

素因数分解:

$2^5\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2281}}^1$

素因数の和:2323

約数の個数: 288

約数和(自身を含む): 2495777760

約数和(自身を除く): 1855272960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 27, 30, 32, 36, 39, 40, 45, 48, 50, 52, 54, 60, 65, 72, 75, 78, 80, 90, 96, 100, 104, 108, 117, 120, 130, 135, 144, 150, 156, 160, 180, 195, 200, 208, 216, 225, 234, 240, 260, 270, 288, 300, 312, 325, 351, 360, 390, 400, 416, 432, 450, 468, 480, 520, 540, 585, 600, 624, 650, 675, 702, 720, 780, 800, 864, 900, 936, 975, 1040, 1080, 1170, 1200, 1248, 1300, 1350, 1404, 1440, 1560, 1755, 1800, 1872, 1950, 2080, 2160, 2281, 2340, 2400, 2600, 2700, 2808, 2925, 3120, 3510, 3600, 3744, 3900, 4320, 4562, 4680, 5200, 5400, 5616, 5850, 6240, 6843, 7020, 7200, 7800, 8775, 9124, 9360, 10400, 10800, 11232, 11405, 11700, 13686, 14040, 15600, 17550, 18248, 18720, 20529, 21600, 22810, 23400, 27372, 28080, 29653, 31200, 34215, 35100, 36496, 41058, 45620, 46800, 54744, 56160, 57025, 59306, 61587, 68430, 70200, 72992, 82116, 88959, 91240, 93600, 102645, 109488, 114050, 118612, 123174, 136860, 140400, 148265, 164232, 171075, 177918, 182480, 205290, 218976, 228100, 237224, 246348, 266877, 273720, 280800, 296530, 307935, 328464, 342150, 355836, 364960, 410580, 444795, 456200, 474448, 492696, 513225, 533754, 547440, 593060, 615870, 656928, 684300, 711672, 741325, 800631, 821160, 889590, 912400, 948896, 985392, 1026450, 1067508, 1094880, 1186120, 1231740, 1334385, 1368600, 1423344, 1482650, 1539675, 1601262, 1642320, 1779180, 1824800, 1970784, 2052900, 2135016, 2223975, 2372240, 2463480, 2668770, 2737200, 2846688, 2965300, 3079350, 3202524, 3284640, 3558360, 4003155, 4105800, 4270032, 4447950, 4744480, 4926960, 5337540, 5474400, 5930600, 6158700, 6405048, 6671925, 7116720, 8006310, 8211600, 8540064, 8895900, 9853920, 10675080, 11861200, 12317400, 12810096, 13343850, 14233440, 16012620, 16423200, 17791800, 20015775, 21350160, 23722400, 24634800, 25620192, 26687700, 32025240, 35583600, 40031550, 42700320, 49269600, 53375400, 64050480, 71167200, 80063100, 106750800, 128100960, 160126200, 213501600, 320252400, 640504800]

約数ペア:

[(1, 640504800), (2, 320252400), (3, 213501600), (4, 160126200), (5, 128100960), (6, 106750800), (8, 80063100), (9, 71167200), (10, 64050480), (12, 53375400), (13, 49269600), (15, 42700320), (16, 40031550), (18, 35583600), (20, 32025240), (24, 26687700), (25, 25620192), (26, 24634800), (27, 23722400), (30, 21350160), (32, 20015775), (36, 17791800), (39, 16423200), (40, 16012620), (45, 14233440), (48, 13343850), (50, 12810096), (52, 12317400), (54, 11861200), (60, 10675080), (65, 9853920), (72, 8895900), (75, 8540064), (78, 8211600), (80, 8006310), (90, 7116720), (96, 6671925), (100, 6405048), (104, 6158700), (108, 5930600), (117, 5474400), (120, 5337540), (130, 4926960), (135, 4744480), (144, 4447950), (150, 4270032), (156, 4105800), (160, 4003155), (180, 3558360), (195, 3284640), (200, 3202524), (208, 3079350), (216, 2965300), (225, 2846688), (234, 2737200), (240, 2668770), (260, 2463480), (270, 2372240), (288, 2223975), (300, 2135016), (312, 2052900), (325, 1970784), (351, 1824800), (360, 1779180), (390, 1642320), (400, 1601262), (416, 1539675), (432, 1482650), (450, 1423344), (468, 1368600), (480, 1334385), (520, 1231740), (540, 1186120), (585, 1094880), (600, 1067508), (624, 1026450), (650, 985392), (675, 948896), (702, 912400), (720, 889590), (780, 821160), (800, 800631), (864, 741325), (900, 711672), (936, 684300), (975, 656928), (1040, 615870), (1080, 593060), (1170, 547440), (1200, 533754), (1248, 513225), (1300, 492696), (1350, 474448), (1404, 456200), (1440, 444795), (1560, 410580), (1755, 364960), (1800, 355836), (1872, 342150), (1950, 328464), (2080, 307935), (2160, 296530), (2281, 280800), (2340, 273720), (2400, 266877), (2600, 246348), (2700, 237224), (2808, 228100), (2925, 218976), (3120, 205290), (3510, 182480), (3600, 177918), (3744, 171075), (3900, 164232), (4320, 148265), (4562, 140400), (4680, 136860), (5200, 123174), (5400, 118612), (5616, 114050), (5850, 109488), (6240, 102645), (6843, 93600), (7020, 91240), (7200, 88959), (7800, 82116), (8775, 72992), (9124, 70200), (9360, 68430), (10400, 61587), (10800, 59306), (11232, 57025), (11405, 56160), (11700, 54744), (13686, 46800), (14040, 45620), (15600, 41058), (17550, 36496), (18248, 35100), (18720, 34215), (20529, 31200), (21600, 29653), (22810, 28080), (23400, 27372)]